<template>
  <div>
    <a-form
      id="formLogin"
      class="user-layout-login"
      ref="formLogin"
      :form="form"
      @submit="handleSubmit"
    >
      <a-tabs
        :activeKey="customActiveKey"
        :tabBarStyle="{ textAlign: 'center', borderBottom: 'unset' }"
        @change="handleTabClick"
      >
        <!-- 账号密码登录 -->
        <a-tab-pane key="tab1">
          <span slot="tab">
            <a-icon type="user" />
            账号密码
          </span>
          <a-alert
            v-if="isLoginError"
            type="error"
            showIcon
            style="margin-bottom: 24px"
            :message="this.accountLoginErrMsg"
          />
          <a-form-item v-if="tenantOpen">
            <a-select
              style="width: 100%"
              size="large"
              placeholder="请选择租户"
              v-decorator="[
                'tenantCode',
                { rules: [{ required: true, message: '请选择租户！' }] },
              ]"
            >
              <a-select-option
                v-for="(item, index) in tenantsList"
                :key="index"
                :value="item.code"
              >
                {{ item.name }}
              </a-select-option>
            </a-select>
          </a-form-item>
          <a-form-item>
            <a-input
              size="large"
              type="text"
              placeholder="账号"
              v-decorator="[
                'account',
                {
                  rules: [
                    { required: true, message: '请输入帐户名' },
                    { validator: handleUsernameOrEmail },
                  ],
                  validateTrigger: 'change',
                },
              ]"
            >
              <a-icon
                slot="prefix"
                type="user"
                :style="{ color: 'rgba(0,0,0,.25)' }"
              />
            </a-input>
          </a-form-item>

          <a-form-item>
            <a-input-password
              size="large"
              autocomplete="false"
              placeholder="密码"
              v-decorator="[
                'password',
                {
                  rules: [{ required: true, message: '请输入密码' }],
                  validateTrigger: 'blur',
                },
              ]"
            >
              <a-icon
                slot="prefix"
                type="lock"
                :style="{ color: 'rgba(0,0,0,.25)' }"
              />
            </a-input-password>
          </a-form-item>

          <a-row :gutter="16">
            <a-col class="gutter-row" :span="14">
              <a-form-item>
                <a-input
                  size="large"
                  type="text"
                  placeholder="验证码"
                  v-decorator="[
                    'code',
                    {
                      rules: [{ required: true, message: '请输入验证码' }],
                      validateTrigger: 'blur',
                    },
                  ]"
                >
                  <a-icon
                    slot="prefix"
                    type="mail"
                    :style="{ color: 'rgba(0,0,0,.25)' }"
                  />
                </a-input>
              </a-form-item>
            </a-col>
            <a-col class="gutter-row" :span="10">
              <div class="login-code">
                <img :src="codeUrl" @click="getCode" />
              </div>
            </a-col>
          </a-row>
        </a-tab-pane>

        <!-- 手机号登录 -->
        <a-tab-pane key="tab2">
          <span slot="tab">
            <a-icon type="mobile" />
            手机号
          </span>
          <a-alert
            v-if="isLoginError"
            type="error"
            showIcon
            style="margin-bottom: 24px"
            :message="this.accountLoginErrMsg"
          />
          <a-form-item v-if="tenantOpen">
            <a-select
              style="width: 100%"
              size="large"
              placeholder="请选择租户"
              v-decorator="[
                'tenantCode',
                { rules: [{ required: true, message: '请选择租户！' }] },
              ]"
            >
              <a-select-option
                v-for="(item, index) in tenantsList"
                :key="index"
                :value="item.code"
              >
                {{ item.name }}
              </a-select-option>
            </a-select>
          </a-form-item>
          <a-form-item>
            <a-input
              size="large"
              type="text"
              placeholder="手机号"
              v-decorator="[
                'mobile',
                {
                  rules: [
                    {
                      required: true,
                      pattern: /^1[34578]\d{9}$/,
                      message: '请输入正确的手机号',
                    },
                  ],
                  validateTrigger: 'change',
                },
              ]"
            >
              <a-icon
                slot="prefix"
                type="mobile"
                :style="{ color: 'rgba(0,0,0,.25)' }"
              />
            </a-input>
          </a-form-item>

          <a-row :gutter="16">
            <a-col class="gutter-row" :span="16">
              <a-form-item>
                <a-input
                  size="large"
                  type="text"
                  placeholder="验证码"
                  v-decorator="[
                    'smsCode',
                    {
                      rules: [{ required: true, message: '请输入验证码' }],
                      validateTrigger: 'blur',
                    },
                  ]"
                >
                  <a-icon
                    slot="prefix"
                    type="mail"
                    :style="{ color: 'rgba(0,0,0,.25)' }"
                  />
                </a-input>
              </a-form-item>
            </a-col>
            <a-col class="gutter-row" :span="8">
              <a-button
                class="getCaptcha"
                tabindex="-1"
                :disabled="state.smsSendBtn"
                @click.stop.prevent="getCaptcha"
                v-text="
                  (!state.smsSendBtn && '获取验证码') || state.time + ' s'
                "
              ></a-button>
            </a-col>
          </a-row>
        </a-tab-pane>

        <!-- 微信登录 -->
        <a-tab-pane key="wechat">
          <span slot="tab">
            <a-icon type="wechat" />
            微信
          </span>
          <iframe
            ref="wechat"
            class="wechat-iframe"
            sandbox="allow-top-navigation allow-scripts allow-same-origin"
            :src="`${socialLoginUrl}/WECHAT_OPEN`"
          />
        </a-tab-pane>
      </a-tabs>

      <template v-if="customActiveKey !== 'wechat'">
        <a-form-item>
          <a-checkbox
            v-decorator="['rememberMe', { valuePropName: 'checked' }]"
          >
            自动登录
          </a-checkbox>
          <router-link
            :to="{ name: 'recover', params: { user: 'aaa' } }"
            class="forge-password"
            style="float: right"
          >
            忘记密码
          </router-link>
        </a-form-item>

        <a-form-item style="margin-top: 24px">
          <a-button
            size="large"
            type="primary"
            htmlType="submit"
            class="login-button"
            :loading="btnLoading"
            :disabled="btnLoading"
          >
            确定
          </a-button>
        </a-form-item>
      </template>

      <div class="user-login-other">
        <span>其他登录方式</span>
        <a>
          <a-icon class="item-icon" type="taobao-circle"></a-icon>
        </a>
        <a>
          <a-icon class="item-icon" type="weibo-circle"></a-icon>
        </a>
        <router-link class="register" :to="{ name: 'register' }">
          注册账户
        </router-link>
      </div>
    </a-form>

    <two-step-captcha
      v-if="requiredTwoStepCaptcha"
      :visible="stepCaptchaVisible"
      @success="stepCaptchaSuccess"
      @cancel="stepCaptchaCancel"
    />
  </div>
</template>

<script>
import TwoStepCaptcha from '@/components/tools/TwoStepCaptcha';
import { mapActions } from 'vuex';
import { getSmsCaptcha, getCodeCaptcha } from '@/api/modular/system/loginManage';
import { socialLoginUrl } from '@/config/net.config';

export default {
  name: 'UserLogin',
  components: {
    TwoStepCaptcha,
  },
  data() {
    return {
      socialLoginUrl,
      customActiveKey: 'tab1',
      btnLoading: false,
      // login type: 0 email, 1 username, 2 telephone
      loginType: 0,
      isLoginError: false,
      requiredTwoStepCaptcha: false,
      stepCaptchaVisible: false,
      form: this.$form.createForm(this),
      state: {
        time: 60,
        // login type: 0 email, 1 username, 2 telephone
        loginType: 0,
        smsSendBtn: false,
      },
      accountLoginErrMsg: '',
      tenantOpen: false,
      tenantsList: [],
      codeUrl: '',
    };
  },
  created() {
    this.getCode();
  },
  methods: {
    ...mapActions(['Login', 'MobileLogin', 'Logout', 'dictTypeData']),
    // handler
    handleUsernameOrEmail(rule, value, callback) {
      const { state } = this;
      const regex = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/;
      if (regex.test(value)) {
        state.loginType = 0;
      } else {
        state.loginType = 1;
      }
      callback();
    },
    handleTabClick(key) {
      this.isLoginError = false;
      this.customActiveKey = key;
      // this.form.resetFields()
    },
    handleSubmit(e) {
      e.preventDefault();
      const {
        form: { validateFields },
        state,
        customActiveKey,
        Login,
        MobileLogin,
      } = this;

      this.btnLoading = true;

      const validateFieldsKey = customActiveKey === 'tab1' ? ['account', 'password', 'code'] : ['mobile', 'smsCode'];
      if (this.tenantOpen) {
        validateFieldsKey.push('tenantCode');
      }
      if (customActiveKey === 'tab1') {
        validateFields(validateFieldsKey, { force: true }, (err, values) => {
          if (!err) {
            const loginParams = { ...values };
            delete loginParams.account;
            loginParams[!state.loginType ? 'email' : 'account'] = values.account;
            loginParams.password = values.password;
            loginParams.code = values.code;
            loginParams.key = this.form.key;
            if (this.tenantOpen) {
              loginParams.tenantCode = values.tenantCode;
            }
            Login(loginParams)
              .then(res => this.loginSuccess(res))
              .catch(this.getCode)
              .finally(() => {
                this.btnLoading = false;
              });
          } else {
            setTimeout(() => {
              this.btnLoading = false;
            }, 600);
          }
        });
      } else {
        validateFields(validateFieldsKey, { force: true }, (err, values) => {
          if (!err) {
            const loginParams = { ...values };
            delete loginParams.mobile;
            loginParams.mobile = values.mobile;
            loginParams.code = values.smsCode;
            MobileLogin(loginParams)
              .then(res => this.loginSuccess(res))
              .catch(err => this.requestFailed(err))
              .finally(() => {
                this.btnLoading = false;
              });
          } else {
            setTimeout(() => {
              this.btnLoading = false;
            }, 600);
          }
        });
      }
    },
    getCode() {
      getCodeCaptcha().then(res => {
        if (res) {
          this.codeUrl = res.data.codeUrl;
          this.form.key = res.data.key;
        }
      });
    },
    getCaptcha(e) {
      e.preventDefault();
      const {
        form: { validateFields },
        state,
      } = this;

      validateFields(['mobile'], { force: true }, (err, values) => {
        if (!err) {
          state.smsSendBtn = true;

          const interval = window.setInterval(() => {
            if (state.time-- <= 0) {
              state.time = 60;
              state.smsSendBtn = false;
              window.clearInterval(interval);
            }
          }, 1000);

          const hide = this.$message.loading('验证码发送中..', 0);
          getSmsCaptcha({ mobile: values.mobile })
            .then(res => {
              setTimeout(hide, 2500);
              this.$notification['success']({
                message: '提示',
                description: '验证码发送成功',
                duration: 8,
              });
            })
            .catch(err => {
              setTimeout(hide, 1);
              clearInterval(interval);
              state.time = 60;
              state.smsSendBtn = false;
              this.requestFailed(err);
            });
        }
      });
    },
    stepCaptchaSuccess() {
      this.loginSuccess();
    },
    stepCaptchaCancel() {
      this.Logout().then(() => {
        this.btnLoading = false;
        this.stepCaptchaVisible = false;
      });
    },
    loginSuccess() {
      this.$router.push({ path: '/' });
      this.isLoginError = false;
      // 加载字典所有字典到缓存中
      this.dictTypeData();
    },
    requestFailed(err) {
      this.accountLoginErrMsg = err;
      this.isLoginError = true;
    },
  },
};
</script>

<style lang="less" scoped>
.user-layout-login {
  label {
    font-size: 14px;
  }

  .getCaptcha {
    display: block;
    width: 100%;
    height: 40px;
  }

  .forge-password {
    font-size: 14px;
  }

  button.login-button {
    padding: 0 15px;
    font-size: 16px;
    height: 40px;
    width: 100%;
  }

  .user-login-other {
    text-align: left;
    margin-top: 24px;
    line-height: 22px;

    .item-icon {
      font-size: 24px;
      color: rgba(0, 0, 0, 0.2);
      margin-left: 16px;
      vertical-align: middle;
      cursor: pointer;
      transition: color 0.3s;

      &:hover {
        color: #1890ff;
      }
    }

    .register {
      float: right;
    }
  }
}

.wechat-iframe {
  width: 100%;
  border: 0;
  min-height: 400px;
}
</style>
